Espresso coffee machine



FIG. 1 is a side elevational view of an espresso coffee machine showing my new design.

FIG. 2 is a side elevational view of the opposite side thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a rear elevational view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an espresso coffee machine, as shown and described. 